N.C. Gen. Stat. § 58-79-22

Any business entity licensed to sell automatic weapons as a federal firearms dealer that is in the business of selling firearms or ammunition and that operates a firing range which rents firearms and sells ammunition that desires to be exempt from the door lock requirements of Chapter 10 of Volume 1 of the North Carolina State Building Code may apply for a permit to do so with the Office of the State Fire Marshal in accordance with G.S. 143-143.4 and rules adopted by the Office of the State Fire Marshal. The Office of the State Fire Marshal shall charge a permit fee of five hundred dollars ($500.00) for the issuance of a permit issued pursuant to G.S. 143-143.4.